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Finding the Fourth Proportional to 3,330.32, 4,995.75 and 958.41

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Solution

The fourth proportional to 3,330.32, 4,995.75 and 958.41 is: 1,437.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,330.32 : 4,995.75 = 958.41 : x
  2. Step 2: Convert to fraction form
    3,330.32/4,995.75 = 958.41/x
  3. Step 3: Cross multiply
    3,330.32x = 4,995.75 × 958.41
  4. Step 4: Simplify right side
    3,330.32x = 4,787,976.76
  5. Step 5: Solve for x
    x = 4,787,976.76/3,330.32
  6. Step 6: Final answer
    x = 1,437.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.